Frozen food cabinet



April 6, 1954 F. J. KUHN 2,674,103

FROZEN FOOD CABINET Filed March 5, 1953 IN VEN TOR. FREDEWKK J. kw/n,

.41 ramvsy' Patented Apr. 6, 1954 h UN-ITED STATES PATENT OFFICE FROZEN FOOD CABINET Frederick J. Kuhn, Detroit, Mich.

Application March 3, 1953, Serial No. 340,084

4 Claims. (01. 62-402) This invention relates to a frozen food cabinet having an insulated storage space together with a plurality of air cooled compartment defining partitions therein.

It is the object of the present invention to provide a novel food storage cabinet, wherein the partitions are cooled and maintained cool .by a continuous flow of refrigerated air there,,

therewith and with refrigerating mechanism for continuously translating cooled air from said cooling compartment, through said partitions and through said duct back to said cooling compartment.

It is the further object of this invention to provide a simplified cooling partition structure whereby cold air may be effectively circulated therethrough. v

These and other objects will be seen from the following, specification and claims in conjunction with the appended drawing, in which:

Fig. 1 is a front elevational view of the present frozen food cabinet.

Fig.2 is a section on line 2--2 of Fig. 1 on an enlarged scale.

Fig. 3 is a fragmentary section taken on line 3-3 of Fig. 2.

Fig. 4 is a fragmentary section taken on line 4-4 of Fig. 2.

Fig. 5 is a section taken on line 5-5 of Fig.

2 and showing in phantom the corrresponding parts before assembly.

Fig. 6 is a view similarto Fig. 5 showing a slightly different form of partition construction; and

Fig. 7 is another view similar to Fig.5 illustrating still another form of compartment construction.

It will be understoodthat the above drawing lllustratesmerely a preferred embodiment of the invention, and that-other embodiments are contemplated within the scope of the. claim hereafter set forth.

Referring to Figs. 1 and 2, .the present frozen food cabinet includes the spaced hollow upright insulated end walls II and I2 with the upright front wall element I 3 interposed therebetween. Said front wall terminates in the horizontal rearwardly extending bottom wall H! which joins the upright rear wall l5. in thefront wall element ILthe lower portion of which terminates in the rearwardly extending top wall element [8, shown in Fig. 2. Interior upright wall 20 terminates at its upper end in the top wall element l9 which in cooperation with top wall element 49 defines the co0lingcom- Top wall It terminates partment 2| within which is positioned a conventionalheat exchanger 22 and a suitable fan 23'. Wall element 20 terminates at its lower end in the interior storage compartment defining bottom wall 2|, and this wall at its front end terminates in the upwardly extending inner wall 22. This latter inner wall 22 terminates at its upper end in the platform 23, whose outer edge corresponds with the upper edge of the front wall element l3.

A suitable insulation 24 is interposed between the above described wall elements to thereby define upon the interior of said. cabinet an insulated storage space. The rectangularly shaped upright windows 25 are arranged upon opposite sides of said cabinet and rest upon the upper ends 26 of the hollow side walls H and I2, and extend upwardly to the overhanging top wall element l8 to thereby provide a side closure for said cabinet yet permitting visual access to the interior thereof.

The upright rectangular glass window 21 is positioned upon the platform 23 and is secured within the molding 28 of U-shape in cross-section to thereby provide an additional front closure for the storage space permitting visual access to said storage space.

The above described wall elements of said cabinet as well as the windows 25 and 2'! thereby define an insulated storage space within the cabinet with physical access thereto being provided between the top wall element l8 and the upper longitudinal edge of the window 21.

Front wall element [3 also terminates in the rearwardly and downwardly inclined wall 29 which in turn terminates in the rearwardly ex tending platform upon which is mounted a conventional refrigerating unit 3| adapted to supply a suitable refrigerant tube 32 which joins heat exchanger 22' within cooling compartment 2|.

The upright interior rear wall 33 within said cabinet. is spaced forwardly of upright wall 20 to thereby define the upright a'ir passage 34 which tioned within said storage space in parallel spaced relation to thereby define a plurality of compartments within said storage space.

, Said partitions include the opposed upright parallel spaced walls 38 and 39 and the end walls 40 and 4|, as shown in Fig. 4. Said partitions also have the top wall elements 46 and the bottom Wall elements 41' to thereby complete the enclosure of said partitions through which cooled air will circulate in -:the manner hereafter 'described.

Horizontally disposed in staggered relation upon the interior of each hollow partition area plurality of flat partition elements 42 -and;43,;the opposite ends of said adjacent partition elements being apertured or cut away as at '44 to'thereby define throughout said partition-a circuitous-passageway 45 for the flow of refrigerated air from the cooling compartment 2|.

The top wall 46' of each of the partitions 31 has an elongated slot or inlet 46, which is in communication "with. a corresponding transverse SIOtsOIOIlt-lfit 48 dormed in 'thebounding wall :49: ofsaid-cooling-compartment 2 l At :the lower end of each partition there -is Fformed in theiendwall cl an air outlet :41 com- :municating with the lowerendof the; air duct.

By this construction the arefrigerated air dinpelled by the fan 23' moveslpastthe refrigeratin heat exchanger 22 and flows downwardly through the circuitous passageway :45 of each of z the upright rhollow partitions with the return flow hack to the cooling compartment ,through 1 the .air duct '34. By this-construction the now of :ref-rigerated air maintains the side .walls 38 and .39atthedesireddegree ofcoldness for effectively refrigerating the various compartments defined by :said -,partitions within the storage space ofsaid cabinet.

As: shown in Fig. -5,'.the partition 58 may be formed, for example, by securing-allot the parztitionqelements 142 and 43 to i one of the partition wa1ls 39wzand by suitably securing-the other par- -:tition wall..38 to ,thelongitudinaledges of said :ways53. The contacting portions 5.2:of thecpartition element .5! :may be secured to :partition element :59 :in any :convenient 'manner, such a as .by welding or riveting.

Another slight variation of partition; construction is-fragmentarily shown iniFig. 7, wherein both -.of the partition elements Bland .55.are corrugated with r the contacting portions Eli-suitablyinterconnected. suchas by welding, tethereby jdefine a plurality of suitably interconnected passage elements 5i'ior circulating refrigerated air through the partitions.

It is contemplated that transverseapertures "'58 may be'formedthrough one or both of the sidewalls 38 and 39 of partitions 3l-to permit the escapeofi refrigerated air into said compartments.

Having described my invention, reference should now-be had totheclaims which follow for determining the scope thereof.

I claim:

l.'In afrozen foodcabinet-having aninsulatedstorage spaceand an air cooling'compartment -therea-bove having a plurality of slotted air outlets, a heat exchanger "of a refrigerating unit and a fan in said cooling compartment, a plurality of upright spaced hollow partitions positioned within said storage space, said cabinet having an upright air duct therein communicating withlsaidc cooling. compartment, each parneon having an-iinletgand an outlet respectively "in communication with a cooling compartment outlet and with said duct, whereby refrigerated air is constantly recirculated through said parftitiGl'lS, duct, and cooling compartment, each partition having a plurality of parallel spaced staggered partition elements defining a circuitous-a-ir passage-through said partitions.

2. In a frozen food cabinet having an insulated storage space and an air cooling compartment thereabove having a plurality of slotted air outlets, aheat exchanger of ,a refrigerating unit and a fan in I said cooling compartment, 1a =-plu- 20 :rality V of upright spaced hollow partitions'posi- 'havingan upright airduct therein communicating with said cooling compartment each partitionhaving aniinlet and an outlet respectively tioned within said storage spacasaid cabinet in communication with a cooling compartment outlet and with said duct, whereby refrigerated air I is constantly recirculated through said vpartitions, duct, and cooling compartment, andropposed upright. channels upon the interior walls of said cabinetbounding said storage space-sup- :portably receiving the 'front'and rear edges :of

and with said duct, wherebyrefrigeratedair is constantly recirculated through saidvpartitions,

' duct, :and cooling compartment, said partitions having a plurality of transverse apertures in their side walls'permitting the'escapeof refrigerated air into said storage space.

. 4. aIn a frozen food cabinet having an insulated storage spacewvith a boun'ding-rea-r wall and an air cooling compartment thereabove, a- 'hori- 'zontally disposed partition wall separating said space and compartment and having a plurality of longitudinally spaced slotted air outlets formed 'therethrough, a heat'exchanger of a refrigerating unit and a fan insaid cooling compartment,

a plurality of upright spaced hollow partitions positionedwithinsaid .storage space extending up to saidpartition wall-and rearwardly to s'aid rear well, said cabinet having an upright air duct rearwardly :of said rear-wall communicating with said cooling compartment, each partition having an inlet at its upper end'and an outlet at its lowcr-end respectively in-communication with a cooling compartment outlet and with said. duct at its lower end, wherebyzrefrigeratedair' is constantly re-circulated through said partitions, duct and coolingcompartment.

References Citedin theme of this patent UNITED STATES PATENTS "Number Name Date 2.4373451 'Baird FMar. 19, .1948 23529334 -Lehmann Nov. :14, 1950 

